Hack Day speaker Ted Valentin, at right, with 24HBC participant Siljerud
Bonnier R&D's Hack Day: the ultimate unconference?
The art of selling is a true craft, says Bonnier Sales Awards finalist Kayse Gundram.
Sarah Haag, editor-in-chief, Planet Girl
Adults are reading books for girls at Thienemann.
Photo by Flickr user ionutz 2000, CC licensed
